Growth Evaluation of Holstein Friesian (HF) Cows and Hybrids (F1, F2 and F3) between HF and lai Sind in Lam Dong province

Abstract

SUMMARY

A survey was undertaken to determine growth pattern of several types of dairy cattle from birth to 24 months of age. Body weight was recorded at birth, 6, 12, 18 and 24 months for 257 HF cows, 348  cows of F₁, F₂ and F₃ crossbreds between HF and lai Sind and the experimental data of body weight of 80 cows (the mentioned four groups, each of 20 cows) were used for evaluation. The purpose of the research was to evaluate the growth pattern of cows according to Gompertz function.